Tube securing means



Patented June 30, 1931 PATENT orr1cs FREDERICK W. KRONE, OF SAN FRANCISCO, CALIFORNIA TUBE SECURING MEANS Application filed January 14, 1928. Serial No. 246,836.

This invention relates to improvements in tube securing means and has particular relference to means for securing a tire tube within a tire shoe so that the same will not A further object to produce a device which is simple in construction and therefore economical to manufacture.

A still further object is to provide a device which can be readily secured to the rubber forming the tube so as to become an integral part thereof.

Other objects and advantages will be apparent during the course oi the foliowing description.

In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a vertical cross section of a tire tube shoe and folly showing my anchor attached thereto, and

Figure 2 is an enlarged detail fragmentary view taken at right angles to that of '2 Figure l, and showing the manner of securing the tube band to the anchor plate.

WVhen a tube is employed having a core 01 cushion therein such as described in my Patent No. 1,636,779, patented July 26th,

'30 1927, it sometimes occurs that after pro longed use the cushion will stretch slightly so as not to adhere to the telly as tightly as it should with the result that running upon this cushion will cause the same to creep.

This creeping action will result in the excess material piling up upon one side of the tube connection and at each revolution of the wheel this excess material will cause a. bump to occur which is wearing upon the '40 tire and also upon the occupants of the vehicle.

I have therefore devised means whereby this creeping action may be entirely prevented and have employed a simple means '45 for accomplishing this result.

In the accompanying drawings wherein for the purpose of illustration is shown a preferred embodiment of my invention the numeral 5 designates the ordinary shoe com- 5 monly employed upon pneumatic tires, the

numeral 6 the outer wall of a tube constructed in accordance with my patent above referred to, which tube is equipped with a cushion element 7. The customary valve tube or stem is shown at 8 which passes through the folly 9 and is secured thereto in the customary manner.

At 11 I have shown an anchor plate, which plate is adapted to be held to the telly as by bolts 12 and 13. This anchor plate has upturned ends as shown. at 1l and 16. At 17 have shown a band preferably made of flat strip brass which is riveted or otherwise secured as at 18 to the end 14- of the anchor plate. This band surrounds the stem 8 and is preferably threadedly secured thereto and has its opposite end connected as at 19 to the end 16 of the anchor plate.

It will be noted that this band 17 is spaced from the telly 9 so that a portion of the rubber as shown at 21 lies between the band and the telly this amount of rubber being sufiicient to impart a certain resiliency to the band thereby allowing it to accommodate itself to various running conditions and to then return to its normal position.

It will thus be seen that I have provided a very simple means for accomplishing the results above set forth.

it is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same and that various changes relative to the material size, shape and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claim.

Having thus described my invention, I claim In a tire structure of the type in Which a casing is associated with an inner tube in the casing and is also associated with a rim having a valve stem extending therethrough, an inner tube having secured thereto adjacent its rim portion an internal cushion projecting towards the tube perimeter, an anchor plate threadedly engaging the valve stem and detachably secured to the rim on the inner periphery thereof, and a band substantially embedded in the cushion element of the inner tube and having its free ends secured to said anchor plate, said anchor plate and band providing a continuous ring within the body of the internal cushion to prevent said tube and cushion element from creeping.

In testimony whereof I affix my signature.

FREDERICK W. KRONE. 

